# Android

## Remote Control Device with scrcpy
- install https://developer.android.com/studio
- settings > info > version > tap build 7x
- settings > dev > enable USB debug

USB
```
sudo apt install scrcpy
# connect usb
scrcpy
```

WiFi (mobile phone's host name is `sx`)
```
adb tcpip 5555
adb connect sx:5555
adb devices
scrcpy
```


## Termux
- [official home page](https://termux.com/)
- [desktop shortcuts \o/](https://wiki.termux.com/wiki/Termux:Widget) 
- [termux-clipboard-get](https://wiki.termux.com/wiki/Termux:API)
  - must install both the app and pkg
- [storage](https://wiki.termux.com/wiki/Termux-setup-storage)
- [my termux-shortcuts](https://github.com/felixhummel/termux-shortcuts)

### SSH
server
```
# install
pkg install openssh
# configure
cat <<'EOF' > ../usr/etc/ssh/sshd_config
PrintMotd no
PasswordAuthentication no
Subsystem sftp /data/data/com.termux/files/usr/libexec/sftp-server
EOF
# run
sshd
```

wifi wants to sleep. create script on mobile:
```
cat <<'EOF' > burn-battery
while true; do
  sleep 0.1
  date
done
EOF
chmod +x burn-battery
```

client
```
id -u
cat <<'EOF' >> ~/.ssh/config
# ssh s7 -t -- ./burn-battery >/dev/null
# to keep wifi from going to sleep
Host s7
  Hostname Samsung-Galaxy-S7
  User u0_a560
  Port 8022
EOF

ssh s7
```


### Termux API
Rabbit hole! :D
```
termux-notification \
	--content "HELLO from termux" \
	--group stuff \
	--title 'hello world!' \
	--action "termux-toast i am the on-click action handler"
termux-tts-speak -l en -n gb "hello world"
```

There is no termux-call-log any more. :(
https://github.com/termux/termux-api/issues/257